Top Premarket Gainers

07:22 AM EDT, 10/26/2026 (MT Newswires) -- Rent the Runway (RENT) shares were up 41% pre-bell Monday after Friday SEC disclosures showed that three investment firms have increased their stakes in the company. Xencor (XNCR) stock was 29% higher after the company announced over the weekend that its experimental cancer drug XmAb819 demonstrated a 45.5% confirmed objective response rate in a phase 1 study of patients with advanced clear cell renal cell carcinoma. Surgery Partners (SGRY) shares were up 23% after the Financial Times reported over the weekend that the company is in late-stage discussions for a takeover by Bon Secours Mercy Health in a go-private deal that would value the company at roughly $6 billion, including debt. Aether (ATHR) stock was 19% higher after a marginal gain in the prior session. Iridex (IRIX) shares were up 14% after a 2% fall at Friday's close.